de.unihalle.informatik.Alida.helpers

Class ALDWeakHashMapEntry

java.lang.Object

java.lang.ref.Reference<T>

java.lang.ref.WeakReference

de.unihalle.informatik.Alida.helpers.ALDWeakHashMapEntry

class ALDWeakHashMapEntry
extends WeakReference

Weak reference hashmap entry.

Author:

moeller

Field Summary

Fields

Modifier and Type	Field and Description
protected int	hash Hash value of referenced object.
protected ALDWeakHashMapEntry	next Pointer to the next reference in hashmap list.
protected Object	value Referenced object itself.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ALDWeakHashMapEntry(int _hash, Object _key, Object _value, ALDWeakHashMapEntry _next, ReferenceQueue<Object> queue) Constructor.

Method Summary

Modifier and Type	Method and Description
Object	getKey() Returns the key of this hashmap element.
ALDWeakHashMapEntry	getNext() Returns reference to subsequent hash element.
Object	getValue() Returns the value of this hashmap element.
Object	setValue(Object _value) Sets the value of the hashmap entry.

Methods inherited from class java.lang.ref.Reference

clear, enqueue, get, isEnqueued

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

hash

protected final int hash

Hash value of referenced object.

value

protected volatile Object value

Referenced object itself.

next

protected volatile ALDWeakHashMapEntry next

Pointer to the next reference in hashmap list.

Constructor Detail

ALDWeakHashMapEntry

protected ALDWeakHashMapEntry(int _hash,
                              Object _key,
                              Object _value,
                              ALDWeakHashMapEntry _next,
                              ReferenceQueue<Object> queue)

Constructor.

Parameters:

_hash - Hash value.

_key - Key object.

_value - Hashmap value of the object.

_next - Reference to subsequent object.

queue - Queue for managing references of deleted objects.

Method Detail

getKey

public Object getKey()

Returns the key of this hashmap element.

getValue

public Object getValue()

Returns the value of this hashmap element.

getNext

public ALDWeakHashMapEntry getNext()

Returns reference to subsequent hash element.

setValue

public Object setValue(Object _value)

Sets the value of the hashmap entry.

Parameters:

_value - New value of this object reference.

Returns:

Reference to the new value.